Ok Madvillain is not the best of all time as I'm getting a bit confused (due to tiredness most likely) seperating MF DOOM and Madvillain. But Madvillain is definitely amongst the best. Madvillainy is one of the most influential, original and groundbreaking hip-hop albums ever. You'd be a fool to say otherwise. Madlib's production on it is second to none and DOOM has that genius flow and those ridiculous lyrics.
And to say Madvillainy sounds like Wu-Tang is pure

:facepalm:
also just check this out on the Wu-Tang forum
http://www.wutang-corp.com/forum/showthread.php?t=49119
32 (94%) say masterpiece. You can't disagree with that.
I don't make this stuff up or argue for the sake of it man, I know what I'm talking about.